QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem907783
USGS iscgem907783
6 Dec 1930, 07:03
185 km ESE of Atka, Alaska
A magnitude 6.1 mw earthquake at 35 km depth.
Published location
Where is 185 km ESE of Atka, Alaska?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
51.858000, -171.560000
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What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Catalog fields and provenance
Event ID
iscgem907783
Coordinates
51.858, -171.56
Network
iscgem
Significance
580